I would recommend TR0393 which leaves Broxbourne at 5:32 and arrives in Cambridge at 6:32.
Great! Can you book 2 seats for me on that one?
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people